<template>
  <div class="search-wrap">
    <input
      type="text"
      :placeholder="placeholder"
      :maxlength="maxlength"
      :value="inputValue"
      @input="searchData($event)"
    />
  </div>
</template>

<script>
import { computed, ref, watch } from 'vue'
import { useStore } from 'vuex'

import { formatUserDate, getNowDate } from '@/libs/utils'
import getData from '@/services'
export default {
  name: 'SearchInput',
  props: {
    placeholder: String,
    maxlength: Number,
  },
  setup(props) {
    const inputValue = ref(''),
      store = useStore(),
      state = store.state

    const searchData = (e) => {
      inputValue.value = e.target.value

      const field = computed(() => state.field).value
      // 输入长度跟设定的maxlength相等时，调用接口
      if (inputValue.value.length === props.maxlength) {
        getData(store, field, formatUserDate(inputValue.value))
      } else if (inputValue.value.length === 0) {
        getData(store, field, getNowDate(field))
      }
    }

    /**
     * 监听 field 变化，清空输入框的值
     */
    watch(
      () => {
        return state.field
      },
      () => {
        inputValue.value = ''
      }
    )
    return {
      inputValue,
      searchData,
    }
  },
}
</script>

<style lang="scss" scoped>
.search-wrap {
  position: fixed;
  top: 0.44rem;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 0.38rem;
  padding: 0.03rem 0.1rem;
  border-bottom: 1px solid #ddd;
  box-sizing: border-box;
  background-color: #fff;

  input {
    width: 100%;
    height: 100%;
    font-size: 0.14rem;
    border: 1px solid #ddd;
    text-indent: 0.1rem;
    border-radius: 0.03rem;

    &:focus {
      border-color: #ed4040;
      box-shadow: 0 0 0.02rem #ed4040;
      transition: all 0.3s;
    }
  }
}
</style>
